An orgasm is one of the most intense, pleasurable, whole-body experiences that a human being can experience.

There are a wide range of orgasmic experiences depending on the individual and the situation.
 

At one end of the spectrum it can be a briefly pleasurable release of pent up sexual frustration, achieved through masturbation or quick sex. At the other end of the spectrum, for say, a couple deeply in love, it can be the most sublime, joyful, all-consuming, intensely loving, out-of-body experience.